public void Subscribe(IEnumerable <string> topics)
{
Logger.InformationStructured(new
{
LogSource = nameof(Subscribe),
LogData = topics,
LogMessage = "Subscribing to topics."
});
ConfluentKafkaConsumer.Subscribe(topics);
}
public async Task <CommittedOffsets> CommitAsync(
IEnumerable <TopicPartitionOffset> topicPartitionOffsets)
{
var(executionTimeMs, commitReport) =
await ConfluentKafkaConsumer.CommitAsync(topicPartitionOffsets).Measure();
Logger.InformationStructured(new
{
LogSource = nameof(CommitAsync),
LogData = commitReport,
LogMessage = $"CommitAsync execution time: {executionTimeMs} ms.",
});
return(commitReport);
}
public async Task <CommittedOffsets> CommitAsync(
Message <string, TMessage> message)
{
var(executionTimeMs, commitReport) =
await ConfluentKafkaConsumer.CommitAsync(message).Measure();
Logger.InformationStructured(new
{
LogSource = nameof(CommitAsync),
LogData = commitReport,
LogMessage = $"CommitAsync execution time: {executionTimeMs} ms.",
});
return(commitReport);
}
protected virtual void Dispose(bool disposing)
{
if (disposing)
{
Logger.InformationStructured(new
{
LogSource = nameof(Dispose),
LogMessage = $"Disposing {nameof(ConfluentKafkaConsumer)}."
});
ConfluentKafkaConsumer?.Dispose();
Logger.InformationStructured(new
{
LogSource = nameof(Dispose),
LogMessage = $"{nameof(ConfluentKafkaConsumer)} successfully disposed."
});
}
}
public void StartPolling()
{
Logger.InformationStructured(new
{
LogSource = nameof(StartPolling),
LogMessage = "Started polling for messages."
});
while (!CancellationToken.IsCancellationRequested)
{
ConfluentKafkaConsumer.Poll(
TimeSpan.FromMilliseconds(ConsumerSettings.PollIntervalMs));
}
Logger.InformationStructured(new
{
LogSource = nameof(StartPolling),
LogMessage = "Polling stopped gracefully."
});
}
protected virtual void OnPartitionsAssigned(
object sender,
List <TopicPartition> topicPartitionsToAssign)
{
Logger.InformationStructured(new
{
LogSource = nameof(OnPartitionsAssigned),
LogData = topicPartitionsToAssign,
LogSender = sender.ToString(),
LogMessage = "Assigning topic partitions."
});
ConfluentKafkaConsumer.Assign(topicPartitionsToAssign);
Logger.InformationStructured(new
{
LogSource = nameof(OnPartitionsAssigned),
LogData = topicPartitionsToAssign,
LogSender = sender.ToString(),
LogMessage = "Topic partitions assigned successfully."
});
}
protected virtual void OnPartitionsRevoked(
object sender,
List <TopicPartition> revokedTopicPartitions)
{
Logger.InformationStructured(new
{
LogSource = nameof(OnPartitionsRevoked),
LogData = revokedTopicPartitions,
LogSender = sender.ToString(),
LogMessage = "Revoking topic partitions."
});
ConfluentKafkaConsumer.Unassign();
Logger.InformationStructured(new
{
LogSource = nameof(OnPartitionsRevoked),
LogData = revokedTopicPartitions,
LogSender = sender.ToString(),
LogMessage = "Topic partitions revoked successfully."
});
}
